Chevrolet P20 Automatic Transmission Kits

Your One-Stop Shop For Trusted Chevrolet P20 Automatic Transmission Kits

If you’re in search of Chevrolet P20 Automatic Transmission Kits aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 18 Automatic Transmission Kits from top brands with prices ranging from $62.99 to $389.99.

Beyond great prices, we stock trusted brands manufacturing all types of Automatic Transmission Kits for your Chevrolet P20. Of the 3 OEM and aftermarket parts brands we carry, some of the most popular are ATP, USA Standard Gear, and B & M.

And don’t forget to read customer reviews across all Automatic Transmission Kits categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Automatic Transmission Kits have to cost top dollar, and we prove it. Browse our top Chevrolet P20 Automatic Transmission Kits below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Chevrolet P20 Automatic Transmission Kits

ATP – AT MSTR REP KIT PLUS (Part No.JMS-10)

AT MSTR REP KIT PLUS

from

$377.99
AT MSTR REP KIT PLUS

ATP – AT MASTER REPAIR KIT (Part No.SM-9)

AT MASTER REPAIR KIT

from

$259.99
AT MASTER REPAIR KIT

ATP – AT MSTR REP KIT PLUS (Part No.JMS-9)

AT MSTR REP KIT PLUS

from

$368.99
AT MSTR REP KIT PLUS

ATP – AT MASTER REPAIR KIT (Part No.JM-9)

AT MASTER REPAIR KIT

from

$253.99
AT MASTER REPAIR KIT

B & M – Master Overhaul Kit, TH350 Transmission (Part No.21042)

Master Overhaul Kit, TH350 Transmission

from

$327.99
The Master Racing overhaul kits are supplied with all of the gaskets, seals, bushings, and friction material required for a complete high performance or racing trans overhaul. Does not come with transbrake gaskets or components.

Product Features:
  • Complete High Perf. Or Racing Trans. Overhaul
  • Includes Only OEM Valvebody Gaskets
  • Instructions Not Included
See More

B & M – Transmission Kit, Transkit 68-81 TH-350 Transmission (Part No.30229)

Transmission Kit, Transkit 68-81 TH-350 Transmission

from

$389.99
B&M Transkits give you the same high-quality components that are used in all B&M Street and Strip transmissions. They also include special directions on how to modify your case, pump, and components.

Product Features:
  • High Perf. Friction Materials
  • Complete Overhaul Gasket Set
  • Modification Components
  • Replacement Valves
  • Replacement Springs
See More

B & M – Shift Improver Kit For 68-81 TH-350 Transmission (Part No.30262)

Shift Improver Kit For 68-81 TH-350 Transmission

from

$62.99
HEAVY DUTY-Firm positive shifts without loss of driver comfort for improved performance in all street vehicles. STREET/STRIP-Positive shifts for high performance street use or for competitive events. Hardest, quickest possible shift.

Product Features:
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
See More

B & M – Transpak For 68-81 TH 350 Transmission (Part No.30228)

Transpak For 68-81 TH 350 Transmission

from

$141.99
The B&M Transpak has all the features in the Shift Improver Kit, plus it provides additional driver manual control. Retain full automatic features and standard shift points with selector in Drive.

Product Features:
  • Recalibrate Auto. Transmission
  • Optimum Performance
  • Select Your App. Mode
  • Improves Transmission Life
  • Trans. Removal Not Required
See More

B & M – Shift Improver Kit (Part No.20261)

Shift Improver Kit

from

$71.29
Shift Improver Kit 1988 to 1994 Chevrolet, Buick, Olds, Pontiac, GMC TH-400 (3L80) Application: 1988 to 1994 Chevrolet, Buick, Olds, Pontiac, GMC TH-400 (3L80) Recalibrate your automatic transmission for optimum performance and extended life! Select the m

Product Features:
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
See More

B & M – Transpak For 65-87 TH400 Transmission (Part No.20228)

Transpak For 65-87 TH400 Transmission

from

$141.99
The B&M Transpak has all the features in the Shift Improver Kit, plus it provides additional driver manual control. Retain full automatic features and standard shift points with selector in Drive.

Product Features:
  • Recalibrate Auto. Transmission
  • Optimum Performance
  • Select Your App. Mode
  • Improves Transmission Life
  • Trans. Removal Not Required
  • Downshift At Any Speed
  • Great For Trailer Towing
  • For Heavy Loads Driving Downhill
See More

ATP – AT OVERHAUL KIT (Part No.JGS-52)

AT OVERHAUL KIT

from

$76.99
AT OVERHAUL KIT

ATP – AT BANNER KIT (Part No.JM-10)

AT BANNER KIT

from

$168.99
AT BANNER KIT

ATP – AT OVERHAUL KIT (Part No.SGS-27)

AT OVERHAUL KIT

from

$83.99
AT OVERHAUL KIT

ATP – AT OVERHAUL KIT (Part No.SGS-28)

AT OVERHAUL KIT

from

$96.99
AT OVERHAUL KIT

ATP – AT BANNER KIT (Part No.SM-11)

AT BANNER KIT

from

$193.99
AT BANNER KIT

Automatic Transmission Kits Brands You Can Trust For Your Chevrolet P20

3 trusted brands of Automatic Transmission Kits line our shelves, ready to help keep your Chevrolet P20 running smooth. Below are some of the most popular brands and their top Automatic Transmission Kits offerings:

Most Purchased Chevrolet P20 Automatic Transmission Kits from ATP

When you buy the most frequently purchased ATP brand Automatic Transmission Kits, you can be confident it will be the right part for your Chevrolet P20. Here are the ATP Automatic Transmission Kits Advanced Auto customers buy the most:
AT MSTR REP KIT PLUS
from $368.99
This product is not rated
AT MSTR REP KIT PLUS
Transmission Master Repair Kits
AT MASTER REPAIR KIT
from $253.99
This product is not rated
AT MASTER REPAIR KIT
Transmission Master Repair Kits
AT BANNER KIT
from $168.99
This product is not rated
AT BANNER KIT
Transmission Rebuild Kits

FAQs for Chevrolet P20 Automatic Transmission Kits

What are the most purchased Automatic Transmission Kits for the Chevrolet P20?

Out of 18 Automatic Transmission Kits for the Chevrolet P20, the most popular in our inventory are:
AT BANNER KIT
from $168.99
This product is not rated
AT BANNER KIT
Transmission Rebuild Kits
AT OVERHAUL KIT
from $76.99
This product is not rated
AT OVERHAUL KIT
Transmission Rebuild Kits
AT MSTR REP KIT PLUS
from $368.99
This product is not rated
AT MSTR REP KIT PLUS
Transmission Master Repair Kits